NF EN ISO 8501-3

NF EN ISO 8501-3

August 2025
Standard Current

Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3 : preparation grades of welds, edges and other areas with surface imperfections

Main informations

Collections

National standards and national normative documents

Publication date

August 2025

Number of pages

24 p.

Reference

NF EN ISO 8501-3

ICS Codes

25.220.10   Surface preparation

Classification index

T35-501-3

Print number

1

International kinship

ISO 8501-3:2025

European kinship

EN ISO 8501-3:2025
Replaced standards (1)
NF EN ISO 8501-3
October 2007
Standard Cancelled
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3 : preparation grades of welds, edges and other areas with surface imperfections

ISO 8501-3:2006 describes preparation grades of welds, cut edges and other areas, on steel surfaces with imperfections. Such imperfections can become visible before and/or after an abrasive blast-cleaning process. The preparation grades given are to make steel surfaces with imperfections, including welded and fabricated surfaces, suitable for the application of paints and related products.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Considérations d'ordre général
  • 5 Types d'imperfections
  • 6 Degrés de préparation
  • Annexe A Correspondance entre les degrés de préparation et les niveaux de qualité de soudure conformément à l'ISO 5817:2023
  • Bibliographie
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
What is the Redline format?
The Redline + service - standards comparator allows you to easily and simply identify major changes between the current standard and its last canceled version.

At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula.
At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula

The Redlines + service is offered to you on the collection of French standards in force, in French language and in HTML and PDF format.

For an overview of the service, click on View a standard in redline format
New: UPSELL service
- The UPSELL service allows you to easily update one of your standards.
- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ